ACNB Corp (ACNB) EVP receives stock grant; part withheld for taxes

Rhea-AI Filing Summary

ACNB CORP executive Brett D. Fulk received an equity award and had shares withheld for taxes. On March 13, 2026, he acquired 3,239.2934 shares of ACNB Corporation common stock as a grant under the ACNB Bank Variable Compensation Plan and the ACNB Corporation 2018 Omnibus Stock Incentive Plan at $46.42 per share. One-third of this restricted stock is fully vested on March 13, 2026, with the next one-third vesting on January 1, 2027 and the final third on January 1, 2028. The issuer withheld 315.1838 shares on the grant date to cover tax liabilities, which is reported as a disposition but was not an open-market sale. After these transactions, Fulk directly holds 3,971.6283 ACNB Corporation common shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider FULK BRETT D

Role Insider

Type	Security	Shares	Price	Value
Grant/Award	ACNB Corporation Common	3,239.293	$46.42	$150K
Tax Withholding	ACNB Corporation Common	315.184	$46.42	$15K

Holdings After Transaction: ACNB Corporation Common — 4,286.812 shares (Direct)

Footnotes (1)

1. The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4). One-third (1/3) of this Variable Equity Award, granted in the form of restricted stock under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, is 100% vested as of the Grant Date of March 13, 2026, with the next one-third (1/3) 100% vested as of January 1, 2027, and the final one-third (1/3) 100% vested as of January 1, 2028. The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability by withholding of securities, on the first one-third (1/3) vested as of the Grant Date of March 13, 2026, in accordance with SEC Rule 16b-1. For clarification, the executive did not sell the shares.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

FULK BRETT D

(Last) (First) (Middle)

16 LINCOLN SQUARE

(Street)

GETTYSBURG PA 17325

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACNB CORP [ ACNB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			ACNB Bank EVP

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
ACNB Corporation Common	03/13/2026	03/16/2026(1)	A		3,239.2934(2)	A	$46.42	4,286.8121	D
ACNB Corporation Common	03/13/2026	03/16/2026(1)	F		315.1838(3)	D	$46.42	3,971.6283	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The date of execution was determined in accordance with SEC Rule 16a-3(g)(2) and (g)(4).

2. One-third (1/3) of this Variable Equity Award, granted in the form of restricted stock under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, is 100% vested as of the Grant Date of March 13, 2026, with the next one-third (1/3) 100% vested as of January 1, 2027, and the final one-third (1/3) 100% vested as of January 1, 2028.

3. The shares disposed were withheld by the Issuer and/or its subsidiary ACNB Bank for payment of the tax liability by withholding of securities, on the first one-third (1/3) vested as of the Grant Date of March 13, 2026, in accordance with SEC Rule 16b-1. For clarification, the executive did not sell the shares.

Remarks:

	/s/ Brett D. Fulk	03/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Brett D. Fulk report in ACNB (ACNB) Form 4?

Brett D. Fulk reported receiving a stock grant of ACNB Corporation common shares and a related tax-withholding transaction. He acquired 3,239.2934 shares on March 13, 2026, and 315.1838 shares were withheld by the issuer to cover tax obligations on the vested portion.

How many ACNB Corporation shares were granted to Brett D. Fulk and at what price?

Fulk received a grant of 3,239.2934 ACNB Corporation common shares valued at $46.42 per share. The award was issued as restricted stock under the ACNB Bank Variable Compensation Plan and the ACNB Corporation 2018 Omnibus Stock Incentive Plan on March 13, 2026.

What is the vesting schedule for Brett D. Fulk’s ACNB restricted stock award?

The restricted stock vests in three equal parts. One-third is fully vested as of March 13, 2026, with the second one-third vesting on January 1, 2027, and the final one-third vesting on January 1, 2028, subject to the plan terms.

Did Brett D. Fulk sell any ACNB (ACNB) shares in this Form 4 filing?

No, Fulk did not sell shares in the market. The filing shows 315.1838 shares were withheld by ACNB and/or ACNB Bank to pay tax liabilities on the vested portion of the award, which is reported as a disposition but not an open-market sale.

How many ACNB Corporation shares does Brett D. Fulk own after these transactions?

Following the grant and tax-withholding entries, Fulk directly holds 3,971.6283 ACNB Corporation common shares. This figure reflects his position after the issuer withheld 315.1838 shares to satisfy tax obligations on the initially vested restricted stock.

What compensation plans are involved in Brett D. Fulk’s ACNB stock award?

The award is a Variable Equity Award granted in the form of restricted stock. It was made under the ACNB Bank Variable Compensation Plan and pursuant to the ACNB Corporation 2018 Omnibus Stock Incentive Plan, as disclosed in the Form 4 footnotes.